July 5, 2013 at
6:18 PM

A month to the day after right-hander Brandon Workman was promoted to Triple-A, Drake Brittonis also en route to the next level. The Pawtucket Red Sox announced on Twitter that the 24-year-old southpaw will join the team, and reliever Clayton Mortensen, recently outrighted to Pawtucket after being designated for assignment, will throw a side session before being activated.

Workman and Britton started the season on the Portland Sea Dogs' staff, which, along with righties Anthony Ranaudo and Matt Barnes, was seen as one of the most talented minor league rotations around.Britton — who stands at a solid 6-foot-2, 215 pounds — has totaled a 7-6 record and 3.51 ERA in 17 games (16 starts) in 2013. He has also posted a 1.34 WHIP and 2.22 K/BB rate, numbers better than each of the last two seasons, while his 7.4 K/9 rate is slightly lower.